Wideband receiver for multi-band millimeter-wave wireless communication

摘要

The RF receiver includes a low noise amplifier (LNA) that receives and amplifies RF signals, a trans-based IQ generator, one or more load resistors, one or more mixer circuits, and a downconverter. .. The trans-based IQ generator generates a differential in-phase local oscillator (LOI) signal and a differential orthogonal (LOQ) signal based on the LO signal received from the local oscillator (LO). The load resistor is coupled to the output of the trans-based IQ generator. Each of the load resistors is adapted to couple one of the differential LOI signal and the LOQ signal to a predetermined bias voltage. The mixer is coupled to the LNA and trans-based IQ generator, receives the RF signal amplified by the LNA, mixes it with the differential LOI and LOQ signals, and produces in-phase RF (RFI) and orthogonal RF (RFQ) signals. Generate. The down converter downconverts the RFI signal and the RFQ signal into an IF signal. [Selection diagram] FIG. 4